INSPECTION


PISTON RINGS

1.Check clearance between piston rings and ring grooves. If the limit is exceeded, replace piston rings or piston, or both.
Standard value:
    No. 1 ring: 0.02 - 0.06 mm
    No. 2 ring: 0.02 - 0.06 mm
Limit: 0.1 mm

2.Put piston rings into the cylinder bore, press them against the piston top face, and push them in. After achieving squareness, measure the end gap with a free gauge. If the end gap is excessive, replace piston rings.
Standard value:
    No. 1 ring: 0.18 - 0.28 mm
    No. 2 ring: 0.28 - 0.43 mm
    Oil ring: 0.10 - 0.40 mm
Limit:
    No. 1 ring: 0.8 mm
    No. 2 ring: 0.8 mm
    Oil ring: 1.0 mm

CRANKSHAFT PIN OIL CLEARANCE (PLASTIGAGE METHOD)
1.Wipe oil off the crankshaft pin and connecting rod bearing.
2.Place a plastigage in length equal to the bearing width on the pin shaft straight in alignment with the shaft centre.

3.Carefully install the connecting rod cap and tighten bolts to the specified torque of 5.0 N·m → 20 N·m → +90°.
4.Remove bolts and gently remove the connecting rod cap.

5.Measure the crushed plastigage width (area most widely crushed) using a scale printed on the plastigage bag.
Standard value: 0.026 - 0.053 mm
Limit: 0.1 mm